Detail publikačního výsledku

Statistical-numerical analysis for pullout tests of ground anchors

CHALMOVSKÝ, J.; ŠTEFAŇÁK, J.; MIČA, L.; KALA, Z., SKUODIS, Š,; NORKUS, A; ŽILIONIENE, D

Originální název

Statistical-numerical analysis for pullout tests of ground anchors

Anglický název

Statistical-numerical analysis for pullout tests of ground anchors

Druh

Článek WoS

Originální abstrakt

The paper presents an application of statistical and numerical methods for the determination of the force-displacement curves and that of pullout capacity of prestressed grouted ground anchors installed in Miocene clay. A regression analysis of data from a database of acceptance test records for ground anchors to create has been performed, the force-displacement curve of the tested anchor corresponding to the range of loads applied for acceptance tests has been created. A linear regression model, employing the weighted least squares method and robust standard errors techniques were concluded to serve as a reliable statistical method suitable for achieving this goal. The discovered linear regression dependence then served as a lower control limit for the displacement values calculated at the anchor head applying the numerical model. A finite element model has been created to predict the behaviour of ground anchors being installed in fine-grained soils. The developed numerical model that employs Mohr-Coulomb strength criterion constitutive model evaluates the influence of high-pressure grouting by development additional radial stresses and that of an increment of fixed length diameter.

Anglický abstrakt

The paper presents an application of statistical and numerical methods for the determination of the force-displacement curves and that of pullout capacity of prestressed grouted ground anchors installed in Miocene clay. A regression analysis of data from a database of acceptance test records for ground anchors to create has been performed, the force-displacement curve of the tested anchor corresponding to the range of loads applied for acceptance tests has been created. A linear regression model, employing the weighted least squares method and robust standard errors techniques were concluded to serve as a reliable statistical method suitable for achieving this goal. The discovered linear regression dependence then served as a lower control limit for the displacement values calculated at the anchor head applying the numerical model. A finite element model has been created to predict the behaviour of ground anchors being installed in fine-grained soils. The developed numerical model that employs Mohr-Coulomb strength criterion constitutive model evaluates the influence of high-pressure grouting by development additional radial stresses and that of an increment of fixed length diameter.

Klíčová slova

Finite Element Method (FEM); ground anchor displacement; high-pressure grouting; numerical analysis, statistical analysis.

Klíčová slova v angličtině

Finite Element Method (FEM); ground anchor displacement; high-pressure grouting; numerical analysis, statistical analysis.

Autoři

CHALMOVSKÝ, J.; ŠTEFAŇÁK, J.; MIČA, L.; KALA, Z., SKUODIS, Š,; NORKUS, A; ŽILIONIENE, D

Rok RIV

2018

Vydáno

18.09.2017

Nakladatel

Vilnius Gediminas Technical University

Místo

Vilnius, Lithuania

ISSN

1822-427X

Periodikum

Baltic Journal of Road and Bridge Engineering

Svazek

12

Číslo

3

Stát

Lotyšská republika

Strany od

145

Strany do

153

Strany počet

8

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT144506,
  author="CHALMOVSKÝ, J. and ŠTEFAŇÁK, J. and MIČA, L. and KALA, Z., SKUODIS, Š, and NORKUS, A and ŽILIONIENE, D",
  title="Statistical-numerical analysis for pullout tests of ground anchors",
  journal="Baltic Journal of Road and Bridge Engineering",
  year="2017",
  volume="12",
  number="3",
  pages="145--153",
  doi="10.3846/bjrbe.2017.17",
  issn="1822-427X"
}